Performing in the middle of the hour-long dance competition, Maks refused to be upstaged by the glistening, partially revealed pecs of the competition and tore off his shirt, flinging it onto the dance floor to complete his samba shirtless with a smile.

A peeved Maks — who choreographed the dance — responded by chucking his shirt at Goodman.

Fellow judges Bruno Tonioli and Carrie Ann Inaba raved and handed down 9s for the hip-shaking samba, but Goodman only gave them a 7.

“Len is wrong one billion percent,” Maks fumed to Us Weekly after taping was over.

“He said we didn’t have enough substance in samba. Are you out of your mind? I could give you a list right now, probably would take about three pages, of all the steps we did in samba. This is what I do for a living!”

Hotheaded Maks, who owns four dance studios and has trained US and world champion dancers, went on the attack, turning the tables on the 66-year-old British judge.

“Don’t tell me what I didn’t do right because you’re wrong! And if that means you’re too old to be on this show and judge, then that’s what it means,” Maks said.